Texas Instruments TI-60 Owner's Manual page 66

CHAPTER 2
AREA OF A CIRCLE
Area of a Circle
In this example, you program the calculator to find the area of a circle,
given any radius The formula tor the area of a circle is A - ir r* There are
two ways lo enter the value for the radius into the program Example 1 uses
the radius from the display before running the program Example 2 recalls it
from a data memory
Example 1
This program uses the value ol the radius in the display To enter the steps
Into program memory, follow the procedure below
Press Display Comments
G8EGHD 0 Clear calculator
_?0d ICP] 0 Clear program memory
2nd ]Part] [X] Pi 56 5 Partition memory
MiMJ PCSt OP Enter learn mode
2nd ] |x*| PCOO OP96 Square the radius
nTirrlfcl PCOO OP9S Multiply by r
U2N 0 Leave lesrn mode
RST 2 JV9 12 56637061 Find area for radius of 2
ifWTi
7
OBI
153 93804 Find area for radius of 7
Example 2
In this example, the value of the radius Is stored in a data memory prior to
running the program To enter the steps into program memory, follow the
procedure below
OFF ON
2nd [CP]
2nd [Part] 5
ran
JT *
0B1IXJ
2nd [xJ|
IHN
2 STO 0
fflffi R/S
7 3T© 0
OKI [«B
Display Comments
0 Clear calculator
0 Clear program memory
Pi 56 5 Partition memory
PCSt OP Enter learn mode
PC01 OP65 Multiply by T
PC03 OPOO Recall radius from memory 0
PC04 OP96 Square the tadius
0 Calculate result, leave team mode
2 Store radius ol 2
12 58637061 Find area lor radius of 2
7 Store radius ol 7
153 93804 Find area lor radius of 7
56-GB